Spinning-bobbin



(NoModel.) J H WELLS I SPINNING301mm.`

No. 426,s46. Patented Apr. 22, 1890.

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N y @g NN UNITED STATES PATENT OFFICE.

J. HENRYA WELLS, OF FALL RIVER, MASSACHUSETTS.

SPINNING-BOBBIN.

.SPECIFICATION forming part of Letters Patent N o. 426,346, dated April 22, 1890.

Application filed August 16, 1889. `Serial No. 320,948. (No model.)

To all whom, t may concern,.-

Be it known that I, J. HENRY WELLS, a citizen of the UnitedStates, and a resident of Fall River, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Spinning-Bobbins 5 and I do hereby declare that the following is a full, clear, and eXact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same. e I

My invention has relation to spinning-bobbins; and it consists in the improved construction whereby the bobbin may be enabled to withstand hygrometrical changes and rendered'strong anddurable at -all times-that is to say, whether the size of the bobbins is changed by the above cause or not; and with these and other ends in view it consists in the improved construction and combination of parts as hereinafter more fully pointed out and described.

In the accompanying drawings, Figure l is a longitudinal sectional View of a bobbin with my invention applied. Fig. 2 is a cross-sectional view on the line x, Fig. l. Fig. 3 is a detail view of the split ring, and Fig. 4 is a detail view of the bushing.

Like letters of reference refer to like parts throughout the several views.

Referring to the drawings, the letter A represents the bobbin proper, having the end thereof, about midway between the edge of the bore and the outer surface of the bobbin, provided with an annular recess d, said chamber extending into the end of the bobbin lengthwise a distance of approximately onehalf inch. This chamber terminates at its inner edge or base in a circumferential groove a.

The letter B represents a spring-tempered split elastic ring, of steel or equivalent material, adapted to be placed and supported within the circumferential groove a', and of sufficient fleXibility to adapt itself to expansion or contraction of the end of the bobbin by reason of atmospheric influences. By thus disposing` the split elastic ring it is entirely concealed from View from the outside, there by not detracting in the least from the ap pearance of the bobbin, and at the same time adding strength, and rigidity even, in case of changes in size of the bobbin through differ ence in atmospheric conditions. I also use in connection with the split ring a bushing or filling for the annular chamber, preferably of Wood, which I have designated by the letter C. This bushing is not absolutely necessary for the purpose of holding the ring in place, inasmuch as said ring, by reason of its flexibility, will contract tightly into the depression or slight groove ct, into which it drops, the ends being opened in inserting the ring in place, thus contracting when in position and thereby tightly binding. It will also be seen `that by this construction after the ring has been inserted and the bushing placed in position the latter will have the effect of closing the annular re cess d of the bobbin, but will not at all interfere with the free action of the ring by pressing against the same, while said. ring will touch no partv of the' bobbin except the inner side of the circumferential groove a, owing to its position within said circumferential groove, thereby not impairing in the least the elasticity of the ring and preserving its effectiveness. The bushing may be retained in place within the annular chamber by means of glue or other suitable adhesive substance, and, when in position, extends from the ring to flush with the bottom end of the bobbin. It is preferably constructed of wood, the grain of which may be run parallel with or crosswise to the grain of the bobbin.

As previously stated, the bushing forms no part of the retaining means for the ring, but serves to strengthen that part of the bobbin exposed to wear by contact with the dog or spindle. Bobbins are liable to injury by contact with each other and by being stepped upon, also by being caught upon the top of spindles in doffing and by centrifugal force resulting from rapid revolution. In all these cases the contractility of the split elastic ring sustains the strain in either direc tion and preserves the proper form and shape of the bobbin even after it has split at the bottom end.

From the foregoing description, taken in connection with the accompanying drawings, the construction and advantages of my imn proved bobbin will be readily understood. It will be seen that the split elastic ring adds which it is passed, it requires no glue or other adhesive mixture to hold it in place.

` By arranging the split ring Within the bobbin it acts in all respects as well as if. upon the outside, and yet is concealed and invisi-,

ble, requiring no change in the outside of the bobbin, and thus obviating the danger, which would be apt to arise, of the split ends, engaging the stock spun upon them and preventing damage thereto by rust or stain of the ring or injury to the guides or otherparts of the machine which come in contact with thebobbin While spooling or spinning. also apparent that this manner of locating or securing the split elastic ring prevents its'.y

slipping off or its easy removal, even by design, eXcept by the destruction of the bobbin,v

I am aware that it is old to provide the outsideol:` bobbins with solid or split rings set in a groove above or below the plane of the surface of the bobbin, also within the bore of bobbins,

and that solid and spiral rings have been used to strengthen bobbins set in an annular groove at and within the .bottom end and then held up by adhesive mixtures, and I therefore do not claim such construction, broadly; but

What I do claim, and desire to secure by Letters Patent of the United States, is-

Itis

1.v The combination, with a solid bobbin having its end providedv with an annular recess located between the edge of the bore and the outer surface oi' said bobbin, said recess terminating at its inner end in a depression Hor.groove of less circumference, of a split spring-tempered elastic ring, of steel or equivalent material, substantially as described.

v2.J The combination, with a solid bobbin having its end provided with an annular recess located between the edge of the bore and the -outer surface of said bobbin, said recess terminating at its inner end in a depression or groove of less circumference, of a split springtempered elastic ring, of steel or equivalent material, placed in said groove, anda iilling or annulus extending-from the ring-flush with the lower` end of -thebore Vof the-bobbin, substantially. as set forth.

, 3. The combination, with asolidbobbin having its end provided/With an annular recess ylocated.between the. edge of the bore and the outer surface of said bobbin,- said recess terminating at its inner end in a depression or groove of lesscircumference, of asplit springtempered elastic ring, of steelor equivalentrnaterial, placed in said groove, and a cross-grain lling-ring inserted into and filling theannularfrecess fiushwith the bottom end of the bobbin, substantially as set fort-h.

ln testimony that I claim the foregoing as my own l'have hereunto affixed my signature in presence of two witnesses.

- J. HENRY 'WELLS Witnesses:

NICHOLAS HATHAWAY, Jr., MARCUS G. B. SWIFT. 

